Effects of soil factor on active components of Radix Ophiopogonis / 中国中药杂志

<p><b>OBJECTIVE</b>To study the effects of soil factors on the active components in Radix Ophiopogonis.</p><p><b>METHOD</b>The content of polysaccharide, flavonoids, saponins, water-soluble extract and inorganic elements in Radix Ophiopogonis gathered from 7 different places were compared, physical and chemical properties and inorganic elements of soil were analyzed. The path and grey connection analysis were applied for studying the effects on the active components of Radix Ophiopogonis.</p><p><b>RESULT AND CONCLUSION</b>The concentrations of mineral elements in plant were mainly adjusted by active absorption. The active components in Radix Ophiopogonis was primarily effected by soil enzyme activity, the other important factors were potassium, pH, and organic matter. K, Fe, Mn, B, Ba, Zn of soil also had much influence on it then others inorganic elements.</p>

Residuals of organochlorine pesticides and heavy metals in Radix Ophiopogonis and Ophiopogon japonicus growing soil / 中国中药杂志

<p><b>OBJECTIVE</b>To determine the residues of organochlorine pesticides and heavy metals in Radix Ophiopogonis and Ophiopogon japonicus.</p><p><b>METHOD</b>The residues of 4 isomers of benzene hexa chloride (BHC) and 4 isomers of dichloro dipheny trichloroethane (DDT) were determined by gas chromatography. The contents of Pb, Cd, Cu, Cr, Hg and As were determined by ICP.</p><p><b>RESULT</b>The residues of organochlorine pesticides in Radix Ophiopogonis were lower than the permissible maximum limits of the Chinese national standard except hexachloride (BHC) in Radix Ophiopogonis from Cixi as well as Cu in soil of Luojiang.</p><p><b>CONCLUSION</b>The enrichment capacity of Radix Ophiopogonis for (BHC) and Hg is higher. It is suggested that we should try to select herbs-growing soil for O. japonicus with a particular emphasis on the pesticides residues in soil.</p>

Residuals of organochlorine pesticides and heavy metals in soil and water of planting base and Liriope muscari / 中国中药杂志

<p><b>OBJECTIVE</b>To analyze the residuals of organochlorine pesticides and heavy metals in soil, water and Radix Liriopes from planting bases in Quanzhou city, and evaluate the quality of the herb.</p><p><b>METHOD</b>GC method was applied to determine residuals of organochlorine pesticides, the contents of Pb, Cd, Cu, Cr, and As were determined by IPC.</p><p><b>RESULT</b>The contents of residuals of organochlorine pesticides and heavy metals varied among the samples of soil, water and Radix liriopes, but all of the residuals met requirement of the national standard.</p><p><b>CONCLUSION</b>Residuals of organochlorine pesticides and heavy metals in soil, water and Radix liriopes from planting bases in Quanzhou city were conformed to GAP.</p>